A new technique for obtaining uniform intensity line focus of Gaussian laser beams

Uniform intensity line focussing of Gaussian laser beams has many applications in different areas e.g., XUV-soft X-ray laser research, material processing, pumping of dye lasers etc. Some of these may also require a line focus of variable length with same uniform intensity. In this paper, we describ...

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Bibliographic Details
Published in:Optics communications 2003-07, Vol.223 (1), p.137-142
Main Authors: Naik, P.A., Kumbhare, S.R., Arora, V., Joshi, R.A., Gupta, P.D.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Gaussian beams
Intensity distribution
Lasers
Line focus
Optics
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma production and heating
Plasma production and heating by laser beams
X- and γ-ray lasers
X-ray imaging
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Summary:Uniform intensity line focussing of Gaussian laser beams has many applications in different areas e.g., XUV-soft X-ray laser research, material processing, pumping of dye lasers etc. Some of these may also require a line focus of variable length with same uniform intensity. In this paper, we describe a simple technique using a wedge to displace and overlap two halves of a Guassian laser beam to obtain a uniform intensity line focus. Variation of the line length at a fixed intensity is accomplished by using appropriate masks. X-ray emission pictures of a line focussed laser produced plasma show the effectiveness of this geometry.
ISSN:0030-4018
1873-0310
DOI:10.1016/S0030-4018(03)01544-X